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UL521 heat detector for Erode: Premium Quality by Wanlin China Factory 2026-08-25
Wanlin Fire by Wanlin Group - China's leading source manufacturer of UL521 heat detector. EN54-5/7/11/25 certified, IN865-867 MHz, true dual optical smoke + A1R heat multi-sensor detection, OEM/ODM. Contact +8613261677119.